Improvement in furnace-feede



w. A. CAMPBELL & J. HYLAND.

- Furnace-Feeder.

No. 221,517. Patented Nov. 11, I879.

NJETERS, FNUTO-UTNOGRAPHER. WASHINGTON. D C,

UNITED STATES Pnrnn'r FFIQ.

WILLIAM A. CAMPBELL AND JOSEPH HYLAND, OF MANISTEE, MICHIGAN.

IMPROVEMENT IN FURNACE-FEED ERS.

Specification forming part of Letters Patent N 0. 221,5 17, datedNovember 11, 1879 application filed May 5, 1879.

To all whom it may concern:

Be it known that W6,WILLIAM A. CAMPBELL and JOSEPH HYLAND, of Manistee,in the county of Manistee and State of Michigan, have invented certainnew and useful Improvements in Furnace-Feeders, of which the followingis aspecification.

The object we have in view is to produce an automatic feeder forfurnaces which can be readily thrown away or removed from thefurnace-front when it is desired to reach thesame for repairs or forother purposes; which will spread the fuel on the fire-bed of thefurnace, and will be compact and convenient in construction andefficient in operation.

The device is intended more especially for feeding sawdust and the otherrefuse of sawmills or other wood-working establishments; but it can beefficiently used for feeding other kinds of fuel. 7

Our invention therein consists in the adjustability of the parts to giveready entrance to the furnace-front; in the peculiarly-situated guidingand scraping plate; in the form of the pusher to spread the fuel; in themanner of connecting and disconnecting the mouth-piece of the furnacewith the chutes; and, further, in providing the peculiar mouth-piecewith a hinged cover and door, all as fully hereinafter explained. A

In the accompanying drawings, Figure 1 is a perspective view of ourfeeding device in connection with a furnace; Fig. 2, a perspective viewof the same disconnected from the furnace, showing the adj ustability ofthe parts; Fig. 3, a top view with the upper chute and the scraperremoved, and Fig. 4 a vertical 1ongitudinal section of the partsarranged as in Fig. 1.

Like letters denote corresponding parts.

A is the upper chute, secured to a rocking bar, 0, pivotally mounted inthetop of an upright frame, B. This chute terminates at its upper endata convenient point to receive the fuel. The chute A is made in twoparts, a b, the upper part, b, being rigidly attached to the rocking bar0, while the lower part, a, is pivotgd thereto and adapted to be turnedto one s1 e.

The chute A can be thrown up on its pivot or turned aside at its lowerend when it is desired to get at the front D of the furnace or to reachthe other parts of the feeding device; or it can be turned to one sideto discharge the fuel upon the furnace-room floor or into any receptacleprovided for the purpose.

The lower part of the chute A may be piv- G, which carries on its end,outside of the uprights, the driving-pulley H. To the front end of theframe E is secured the horizontal box or chute 1, of equal or greaterwidth than the inclined chute A, which chute I rests at its forward endwhen in position upon the projecting lower edge of the mouth-piece J ofthe furnace. This month piece J projects outwardly from thefurnace-front D, to which it preferably is removably secured by means ofhooks, bolts, screws, or turn-buckles. Above the mouthpiece J is hingedto the front D a cover, h, extending out nearly to the end of the chuteI, but not so far that it will interfere with the vertical movement ofsuch chute. The forward edge of the hinged cover It carries a hinged andswinging door, k, which is swung back by the fuel. This door can bearranged to slide vertically and to be opened by the ad vancin g pusher,if desired.

K is a sliding pusher, which reciprocates upon the chute I, and receivesmotion from the shaft Gr, preferably through a crank, 0, link d, and arm6 but a crank-and-pitman connection may be used. The forward end of thepusher K is constructed with a projecting center, so as to spread thefuel to the sides and distribute the same evenly upon the fire-bed ofthe furnace.

L is a guide and scraper, which is pivoted to standards l, rising fromthe frame E, and is placed between the lower end of the chute A and thetop of the pusher. This pivoted scraper and guide receives the fuel fromthe chute A, guides the same into the chute I and upon the pusher, andprevents such fuel from being carried back under the end of the chute Aby the backward movementof the pusher.

The frame E can be thrown back on its pivots when it is desired toexamine the furnacefront or for any other purpose, carrying, with it thechute I, the pusher, and the guidingscraper, and raising the chute A.

To examine the fire-bed or manipulate the firein any manner, the chutecan first be thrown back and the hinged cover and door raised, or suchcover and door can be raised without disturbing the chutes. For repairsto the furnace, the month piece and cover can be removed bodilytherefrom.

The uprights supporting the chutes can be made portable by securing themto one or two base-frames, or they can be fixed in the floor of thefurnace-room, as shown.

The operation of our devices will be easily understood and theiradvantages will be readily appreciated by those understanding theobjections to feeders of this class heretofore.

What we claim as our invention is- 1. In automatic furnucefeeders, thecombination of the vertically-swingiug chute I with thereciprocatiugpusher working in such chute and swinging therewith,substantially as described and shown.

2. In automatic furnacefeeders, the combination of the verticallyswinging, chutes A I and the reciprocating pusher Ix, working in thelower chute, substantially as described and shown.

3. In automatic furnace-feeders, the chute I, connected with the mouthof the furnace and having a reciprocating pusher for charging the fuelinto the furnace, in combination with the chute A, swinging verticallyand having a laterally-swinging lower end, substantially as describedand shown.

4. In automatic furnace-feeders, the combination ot'the chutesand thesliding pusher with the guide and scraper L, situated between the lowerend of the upper chute and the pusher, and receiving the fuel from thechute, substantially as described and shown.

5. In automatic furnace-feeders, the sliding pusher K, havingcentrally-projecting forward end, substantially as described and shown.

6. In automatic furnace-feeders, the mouthpiece J to the furnace, havingprojecting bottom plate, in combination with the verticallyswinging'chute I, substantially as described and shown.

7. In an automatic furnace-feeder, the mouthpiece J, having hinged coverh and door 1:,substantially as described and shown.

WILLIAM A. CAMPBELL. JOSEPH HYLAND.

\Vituesses G. A. HART, J. L. Smnnn.

